Laser beam exposing unit having plastic non-spherical lenses bet

Details Laser beam exposing unit having plastic non-spherical lenses bet Laser beam exposing unit having plastic non-spherical lenses bet

1996-04-15

1998-10-27

Fuller, Benjamin R.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347260, 347258, B41J 247, G01D 1514, G02B 2600, G02B 2700

Patent

active

058284010

ABSTRACT:
A laser beam printer of the present invention has a laser exposing unit including apochromatical plastic cylinder lenses being integrally formed by adhesion of plastic of the same material as a f.theta. lens or molding, having negative power in a sub-scanning direction, a substantially flat surface contacting air, and first and second f.theta. lenses in which surfaces other than a toric surface are displaced in the same direction in the sub-scanning direction and a toric surface is displaced in the direction opposite to the other surfaces in the sub-scanning direction and a different inclination is provided for each of the lenses. The plastic cylinder lens and the glass cylinder lens may be inversely arranged.

REFERENCES:
patent: 5159193 (1992-10-01), Shiraishi et al.

Affiliated with

Also associated with

Rating

Laser beam exposing unit having plastic non-spherical lenses bet does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser beam exposing unit having plastic non-spherical lenses bet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser beam exposing unit having plastic non-spherical lenses bet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1617483